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Python Solution
def sockMerchant(n, ar): n_pairs = 0 pair_dict = Counter(ar) for value in pair_dict.values(): n_pairs += (value//2) return n_pairs
I think you need to sort input array first
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Python Solution
def sockMerchant(n, ar): n_pairs = 0 pair_dict = Counter(ar) for value in pair_dict.values(): n_pairs += (value//2) return n_pairsI think you need to sort input array first